linux-ext4 - Re: mounting ext3 with another superblock doesn't work?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110509124322.GB306@bitwizard.nl>
Date:	Mon, 9 May 2011 14:43:22 +0200
From:	Rogier Wolff <R.E.Wolff@...Wizard.nl>
To:	Jan Kara <jack@...e.cz>
Cc:	Christoph Anton Mitterer <calestyo@...entia.net>,
	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	adilger@...ger.ca, amir73il@...rs.sourceforge.net
Subject: Re: mounting ext3 with another superblock doesn't work?

On Mon, May 09, 2011 at 02:06:08PM +0200, Jan Kara wrote:
> > e2fsprogs' mkfs is really missing a check whether any known
> > filesystem/partition type/container (luks, lvm, mdadm, etc.) is already on
> > device (and a -force switch),... IIRC xfsprogs already do this more or
> > less.

>   Yes, that would be reasonable although it might break some
>   people's scripts. But probably worth it anyway.

This is a difficult change.... 

Some GUI install things already perform this check and after asking
confirmation from the user will just execute:

	mkfs.ext3 /dev/....

and expect it to make the filesystem. 

So you could add an option: 
	--check _for_existing_filesystem

But then it is quite likely that people running it manually will
forget to add the option....

	Roger. 

-- 
** R.E.Wolff@...Wizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 **
**    Delftechpark 26 2628 XH  Delft, The Netherlands. KVK: 27239233    **
*-- BitWizard writes Linux device drivers for any device you may have! --*
Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. 
Does it sit on the couch all day? Is it unemployed? Please be specific! 
Define 'it' and what it isn't doing. --------- Adapted from lxrbot FAQ
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html